turn on sth.困难

For the low-sympathy kids, how much they shared appeared to turn on how inclined they were to feel guilty.

对于同情心较弱的孩子来说，他们分享的多少似乎取决于他们有多容易感到内疚。

The 8-0 objection to President Obama turns on what Justice Samuel Alito describes in his objection as “a shocking assertion of federal executive power.”

对奥巴马总统8比0的反对，关键在于大法官塞缪尔·阿利托在其反对意见中所说的“对联邦行政权力令人震惊的主张”。